U.S. patent application number 13/715038 was filed with the patent office on 2013-06-27 for hydraulic hinge for a glass door.
This patent application is currently assigned to GANG GWO INDUSTRIAL CO., LTD.. The applicant listed for this patent is GANG GWO INDUSTRIAL CO., LTD.. Invention is credited to Ko-Ming CHENG.
Application Number | 20130160238 13/715038 |
Document ID | / |
Family ID | 48634494 |
Filed Date | 2013-06-27 |
United States Patent
Application |
20130160238 |
Kind Code |
A1 |
CHENG; Ko-Ming |
June 27, 2013 |
HYDRAULIC HINGE FOR A GLASS DOOR
Abstract
A hydraulic hinge for a glass door has a fixing plate, a base, a
pivot, a buffer module, and a clamping module. The base is combined
with the fixing plate and has an oil passage. The oil passage is
formed in the base. The pivot is rotatably mounted in the base and
has an adjusting space communicating with the oil passage. The oil
passage and the adjusting space are filled with oil. The buffer
module is mounted in the base and has a sliding tube abutting the
pivot. The clamping module is pivotally mounted on the pivot and
can clamp a glass door. The glass door can be pivoted relative to
the base. With the buffer module and the oil in the oil passage,
the glass door can be closed in a smooth movement.
Inventors: |
CHENG; Ko-Ming; (Pingtung
City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GANG GWO INDUSTRIAL CO., LTD.; |
Pingtung City |
|
TW |
|
|
Assignee: |
GANG GWO INDUSTRIAL CO.,
LTD.
Pingtung City
TW
|
Family ID: |
48634494 |
Appl. No.: |
13/715038 |
Filed: |
December 14, 2012 |
Current U.S.
Class: |
16/54 |
Current CPC
Class: |
E05D 11/1014 20130101;
E05D 5/0246 20130101; Y10T 16/2771 20150115; E05F 3/20 20130101;
Y10T 16/534 20150115; E05F 3/10 20130101; E05F 3/04 20130101; E05Y
2900/132 20130101 |
Class at
Publication: |
16/54 |
International
Class: |
E05F 3/20 20060101
E05F003/20; E05F 3/04 20060101 E05F003/04 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 21, 2011 |
TW |
100147609 |
Claims
1. A hydraulic hinge for a glass door comprising: a fixing plate; a
base combined with the fixing plate and having a top side; a bottom
side; a front side; a rear side; a right side; a left side; a
longitudinal direction defined from the top side to the bottom
side; a lateral direction defined from the front side to the rear
side; a first space formed in the base along the longitudinal
direction; a second space formed in the base along the lateral
direction and communicating with the first space; and an oil
passage formed in the base and communicating with the first space
and the second space and having a first passage formed in the base
and communicating with the first space; and a second passage formed
in the base and communicating with the first passage and the second
space; a pivot rotatably mounted in the first space and having a
side; an abutted surface formed in the pivot; and an adjusting
space formed in the side of the pivot and adjacent to the abutted
surface and communicating with the oil passage; a buffer module
mounted in the second space and having a fixed cover mounted in and
sealing the second space and adjacent to the fixing plate; a
sliding tube slidably mounted in the second space and abutting the
pivot and having an end abutting the pivot; an assembling portion
formed in the end of the sliding tube abutting the pivot and
selectively communicating between the second space and the
adjusting space; and a spring mounted between and abutting the
fixed cover and the sliding tube; and a clamping module pivotally
mounted on the pivot and having two clamping plates pivotally
mounted on the right side and the left side of the base
respectively.
2. The hydraulic hinge as claimed in claim 1, wherein the
assembling portion further has a tube hole formed in the assembling
portion and communicating with the second space and the adjusting
space; a ball moveably mounted in and selectively sealing the tube
hole; a filtering plate mounted in the tube hole and selectively
abutting the pivot; and a plate hole formed in the filtering plate
and aligned with the tube hole.
3. The hydraulic hinge as claimed in claim 2, wherein the base
further has an adjusting hole formed in the base and communicating
with the oil passage; and an adjusting unit moveably mounted in the
adjusting hole.
4. The hydraulic hinge as claimed in claim 3, wherein the clamping
module further has two clamping pads mounted on the clamping plates
respectively.
5. The hydraulic hinge as claimed in claim 4, wherein the buffer
module further has a sealing ring mounted around the fixed
cover.
6. The hydraulic hinge as claimed in claim 1, wherein a base shell
is made of stainless steel and is mounted outside the base; and
each clamping plate has a plate shell made of stainless steel; and
a plate body mounted in and combined with the plate shell; wherein
the clamping plates are pivotally mounted on the pivot by one of
the plate bodies.
7. The hydraulic hinge as claimed in claim 2, wherein a base shell
is made of stainless steel and is mounted outside the base; and
each clamping plate has a plate shell made of stainless steel; and
a plate body mounted in and combined with the plate shell; wherein
the clamping plates are pivotally mounted on the pivot by one of
the plate bodies.
8. The hydraulic hinge as claimed in claim 3, wherein a base shell
is made of stainless steel and is mounted outside the base; and
each clamping plate has a plate shell made of stainless steel; and
a plate body mounted in and combined with the plate shell; wherein
the clamping plates are pivotally mounted on the pivot by one of
the plate bodies.
9. The hydraulic hinge as claimed in claim 4, wherein a base shell
is made of stainless steel and is mounted outside the base; and
each clamping plate has a plate shell made of stainless steel; and
a plate body mounted in and combined with the plate shell; wherein
the clamping plates are pivotally mounted on the pivot by one of
the plate bodies.
10. The hydraulic hinge as claimed in claim 5, wherein a base shell
is made of stainless steel and is mounted outside the base; and
each clamping plate has a plate shell made of stainless steel; and
a plate body mounted in and combined with the plate shell; wherein
the clamping plates are pivotally mounted on the pivot by one of
the plate bodies.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a hydraulic hinge,
especially for a hydraulic hinge for a glass door.
[0003] 2. Description of Related Art
[0004] A glass door is mounted in a doorframe by a hinge, such that
the glass door can be pivoted relative to the doorframe.
[0005] A conventional hinge has a fixing plate, a base, a pivot,
and two clamping plates. The fixing plate is combined with a
doorframe. The base is combined with the fixing plate. The base has
a first space, a second space, a stick, and a spring. The first
space and the second space are formed in the base and communicate
with each other. The stick is mounted in the first space. The
spring is mounted around the stick to make the stick moveable in
the first space. The pivot is mounted in the second space and abuts
the stick. The pivot has two opposite cambered surfaces and two
opposite flat surfaces. The pivot abuts the stick by one of the
cambered surfaces or one of the flat surfaces. The clamping plates
are mounted on the ends of the pivot and can be pivoted relative to
the base. A glass door is clamped between the clamping plates.
[0006] When the glass door is pivoted, the clamping plates are
rotated relative to the base. The pivot abuts the stick by one of
the cambered surfaces or one of the flat surfaces, such that the
degree of compression of the spring varies depending on the
abutting angle of the pivot on the cambered surface or the flat
surface, and then the pivot can be pivoted smoothly. However, the
conventional hinge lacks a buffer device, so the closing of the
glass door cannot be processed in a slow and smooth movement.
SUMMARY OF THE INVENTION
[0007] The main object of the present invention is to provide a
hydraulic hinge for a glass door, which has a fixing plate, a base,
a pivot, a buffer module, and a clamping module.
[0008] The base is combined with the fixing plate and has a top
side, a bottom side, a front side, a rear side, a right side, a
left side, a longitudinal direction form the top side to the bottom
side, a lateral direction from the front side to the rear side, a
first space formed in the base and along the longitudinal
direction, a second space formed in the base and along the lateral
direction, and an oil passage formed in the base and communicating
with the first space and the second space. The oil passage has a
first passage formed in the base and communicating with the first
space, and a second passage formed in the base and communicating
with the first passage and the second space.
[0009] The pivot is rotatably mounted in the first space and has a
side, an abutted surface formed in the pivot, and an adjusting
space formed in the side of the pivot and adjacent to the abutted
surface and communicating with the oil passage.
[0010] The buffer module is mounted in the second space and has a
fixed cover mounted in and sealing the second space and adjacent to
the fixing plate, a sliding tube slidably mounted in the second
space and abutting the pivot, and a spring mounted between and
abutting the fixed cover and the sliding tube. The sliding tube
further has an end abutting the pivot, and an assembling portion
formed in the end of the sliding tube abutting the pivot and
selectively communicating between the second space and the
adjusting space.
[0011] The clamping module is pivotally mounted on the pivot and
has two clamping plates pivotally mounted on the right side and the
left side of the base respectively.
[0012] The hydraulic hinge is mounted on a doorframe. The clamping
module is applied for clamping a glass door, such that the glass
door can be pivoted relative to the doorframe.
[0013] When the glass door is pivoted to be in an open condition,
the glass door drives the pivot to rotate, and then the abutted
surface does not abut the sliding tube, and the pivot pushes the
sliding tube to move towards the fixing cover. The space between
the sliding tube and the fixing cover is reduced gradually, and the
oil in the adjusting space flows into the oil passage.
[0014] The sliding tube is pushed by the spring to move towards the
pivot, such that the space between the fixing cover and the sliding
tube is increased, and the oil in the oil passage flows into the
second space. The sliding tube pushes the pivot to rotate to make
the abutted surface face the fixing cover and abut the sliding tube
again, such that the glass door is in a closed condition again. As
a result, the glass door can be closed in a slow and smooth
movement.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is an exploded perspective view of a first preferred
embodiment of a hydraulic hinge for a glass door in accordance with
the present invention;
[0016] FIG. 2 is a perspective view of the hydraulic hinge in FIG.
1;
[0017] FIG. 3 is an enlarged operational top view in partial
section of the hydraulic hinge in FIG. 1;
[0018] FIG. 4 is an operational left side view in partial section
of the hydraulic hinge along line 4-4 in FIG. 3;
[0019] FIG. 5 is an operational front view in partial section of
the hydraulic hinge along line 5-5 in FIG. 3;
[0020] FIG. 6 is an enlarged operational top view in partial
section of the hydraulic hinge in FIG. 1;
[0021] FIG. 7 is an enlarged operational top view in partial
section of the hydraulic hinge in FIG. 1;
[0022] FIG. 8 is an operational left side view in partial section
of the hydraulic hinge in FIG. 1;
[0023] FIG. 9 is an exploded perspective view of a second preferred
embodiment of a hydraulic hinge for a glass door in accordance with
the present invention; and
[0024] FIG. 10 is a perspective view of the hydraulic hinge in FIG.
9.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
[0025] With reference to FIG. 1 and FIG. 2, a first preferred
embodiment of a hydraulic hinge for a glass door in accordance with
the present invention has a fixing plate 10, a base 20, a pivot 30,
a buffer module 40, and a clamping module 50. With further
reference to FIG. 3, the hydraulic hinge is applied for clamping a
glass door 70, and the hydraulic hinge is mounted on a doorframe,
such that the glass door 70 can be pivoted relative to the
doorframe.
[0026] With reference to FIG. 1 to FIG. 3, the fixing plate 10 has
multiple plate holes 11, multiple fixing holes 12, and multiple
bolts 13. The plate holes 11 are formed in the fixing plate 10, and
the fixing plate 10 can be fixed on the doorframe by multiple
fixing units mounted through the plate holes 11 respectively and
combined with the doorframe. The fixing holes 12 are formed in the
fixing plate 10 and the bolts 13 are mounted through and protrude
from the fixing holes 12 respectively.
[0027] The base 20 is made of stainless steel to provide an
antirust effect and is combined with the fixing plate 10 by the
bolts 13. The base 20 has a top side, a bottom side, a front side,
a rear side, a right side, a left side, a longitudinal direction, a
lateral direction, a first space 21, a second space 22, an oil
passage 23, and an adjusting hole 24. The longitudinal direction is
defined from the top side to the bottom side. The lateral direction
is defined from the front side to the rear side. The first space 21
is formed in the base 20 along the longitudinal direction. The
second space 22 is formed in the base 20 along the lateral
direction and communicates with the first space 21.
[0028] The oil passage 23 is formed in the base 20 and communicates
with the first space 21 and the second space 22. The oil passage 23
is filled with oil. The oil passage 23 has a first passage 231 and
a second passage 232. The first passage 231 and the second passage
232 are formed in the base 20 and communicate with each other. The
first oil passage 231 has a first space opening 233 formed on an
end of the first passage 231, such that the first passage 231 can
communicate with the first space 21 through the first opening 233.
The second passage 232 has a second space opening 234 formed on an
end of the second passage 232, such that the second passage 232 can
communicate with the second space 22 through the second space
opening 234. The adjusting hole 24 is formed in the base 20 and
communicates with the oil passage 23.
[0029] Preferably, the first passage 231 further has a first
opening, a first narrow segment and a first wide segment, and the
second passage 232 further has a second opening, a second narrow
segment and a second wide segment. The first opening is formed on
an end of the first passage 231 opposite to the first space opening
233 and on the outer surface of the base 20. The first narrow
segment communicates with the first space 21, and the first wide
segment is connected between the first narrow segment and the first
opening. The second opening is formed on an end of the second
passage 232 opposite to the second space opening 234 and on the
outer surface of the base 20. The second narrow segment
communicates with the second space 22, and the second wide segment
is connected between the second narrow segment and the second
opening. The base 20 further has two stopping balls 25 and two
stopping units 26. One of the stopping balls 25 is mounted in the
first wide segment of the first passage 231 and seals the junction
of the first wide segment and the first narrow segment, and the
other stopping ball 25 is mounted in the second wide segment and
seals the junction of the second wide segment and the second narrow
segment. One of the stopping units 26 is mounted in the first wide
segment to fix in position the stopping ball 25 which is mounted in
first wide segment, and the other stopping unit 26 is mounted in
the second wide segment to fix in position the stopping ball 25
which is mounted in the second wide augment. As a result, only the
first narrow segment and the second narrow segment are filled with
oil, and the oil is prevented from pouring out of the base 20.
[0030] Preferably, the base 20 further has an adjusting unit 27
moveably mounted in the adjusting hole 24. The adjusting unit 27
can be screwed out of or into the adjusting hole 24 to determine
the size of the space that is a sum of the oil passage 23 and the
adjusting hole 24, such that the hydraulic hinge can control the
flow speed of the oil in the oil passage 23 and the adjusting hole
24 by adjusting the position of the adjusting unit 27 in the
adjusting hole 24.
[0031] The pivot 30 is rotatably mounted in the first space 21 and
has an abutted surface 31 and an adjusting space 32. The abutted
surface 31 is formed in the pivot 30. The adjusting space 32 is
formed in a side of the pivot 30 and is adjacent to the abutted
surface 31. The adjusting space 32 can communicate with the oil
passage 23 when the pivot 30 is rotated to make the abutted surface
31 face the second space 22. The adjusting space 32 is filled with
oil.
[0032] The buffer module 40 is mounted in the second space 22 and
has a fixed cover 41, a sliding tube 42, a spring 43, a sealing
ring 44, and an assembling portion 45. The fixed cover 41 is
mounted in and seals the second space 22 and is adjacent to the
fixing plate 10. The sliding tube 42 is slidably mounted in the
second space 22 and abuts the pivot 30. The spring 43 is mounted
between and abuts the fixed cover 41 and the sliding tube 42. The
sealing ring 44 is mounted around the fixed cover 41.
[0033] The assembling portion 45 is mounted on an end of the
sliding tube 42 that abuts the pivot 30. The assembling portion 45
has a ball 46 and a filtering plate 47, a tube hole 48, and a plate
hole 49. The ball 46 and the filtering plate 47 are mounted in the
assembling portion 45 to form a control valve, and the sliding tube
42 can use the control valve to selectively seal the end of the
sliding tube 42 that abuts the pivot 30. The tube hole 48 is formed
in the assembling portion 45. The ball 46 is moveably mounted in
and selectively seals the tube hole 48. The filtering plate 47 is
mounted in the tube hole 48 and selectively abuts the pivot 30. The
plate hole 49 is formed in the filtering plate 47 and aligned with
the tube hole 48.
[0034] The clamping module 50 is mounted on the right side and the
left side of the base 20 and pivotally connected with the pivot 30.
Preferably, the clamping module 50 has two clamping plates 51, two
clamping units 52, and two clamping pads 53. The clamping plates 51
are made of stainless steel to provide an antirust effect. One of
the clamping plates 51 is pivotally connected with the pivot 30 by
the clamping units 52, wherein the clamping units 52 are mounted on
two ends of the pivot 30 respectively. The other clamping plate 51
is combined on a side of the clamping plate 51 with which the pivot
30 is connected. The clamping pads 53 are mounted on the clamping
plates 51 and located on the right side and the left side of the
base 20 respectively. The clamping module 50 can clamp a glass
door, such that the glass door can be pivotally connected with a
doorframe by the hydraulic hinge.
[0035] With reference to FIG. 3 to FIG. 5, a glass door 70 is
clamped between the clamping pads 53. When the glass door 70 is in
a closed situation, which means an angle between the glass door 70
and the base 20 is 180 degrees, the sliding tube 42 protrudes into
the adjusting space 32 and abuts the abutted surface 31.
[0036] With reference to FIG. 6, the glass door 70 is pivoted
relative to the base 20 and is in an open situation, which means an
angle between the glass door 70 and the base 20 is less than 180
degrees and more than 90 degrees. When the glass door 70 is pivoted
relative to the base 20, the pivot 30 is rotated, and then the
pivot 30 contacts the sliding tube 42 aligned in a line, and the
pivot 30 presses the sliding tube 42 to slide towards the fixed
cover 41. The spring 43 is compressed and a space between the fixed
cover 41 and the sliding tube 42 is reduced gradually, such that
the oil in the space between the fixed cover 41 and the sliding
tube 42 flows in the tube hole 48 to push the ball 46, and then the
oil flows across the plate hole 49 and into the adjusting space 32.
The oil in the adjusting space 32 further flows into the first
passage 231.
[0037] With reference to FIG. 7, when the angle between the glass
door 70 and the base is 90 degrees, the glass door 70 is in a fully
open condition. An elastic force of the spring 43 presses the
sliding tube 42 to push the sliding tube 42 to move towards the
pivot 30.
[0038] With reference to FIG. 8, the sliding tube 42 pushes the
pivot 30 to rotate to make the abutted surface 31 turn to face the
fixed cover 41. In the moving process of the sliding tube 42, the
space between the sliding tube 42 and the fixed cover 41 becomes
larger gradually, such that the oil in the first passage 231 flows
into the second passage 232, and then flows into the second space
22 through the second space opening 234 to fill the space between
the sliding tube 42 and the fixed cover 41. When the abutted
surface 31 abuts the sliding tube 42 again, the plate hole 49 is
sealed by the abutted surface 31, and the oil in the second space
22 stops flowing into the adjusting space 32, such that the glass
door 70 is in the closed condition, which means the hydraulic hinge
is in the condition as shown in FIG. 3.
[0039] The buffer module 40 can control the abutted surface 31 to
return to face the fixed cover 41, and the oil flows in the oil
passage 23 can further provide a lubricating-buffering effect. As a
result, the glass door 70 can be closed in a slow and smooth
movement.
[0040] With reference to FIG. 5, the adjusting unit 27 can be moved
in the adjusting hole 24 to adjust the size of the space in which
the oil flows. Preferably, when the adjusting unit 27 is screwed
out of the adjusting hole 24, the size of the space in which the
oil flows is the sum of the adjusting space 32, the second space
22, the oil passage 23 and part of the adjusting hole 24. When the
adjusting unit 27 is screwed into the adjusting hole 24, the size
of the space in which the oil flows is only the sum of the
adjusting space 32, the second space 22, and the oil passage 23.
The smaller the size of the space in which the oil flows, the
faster the flow speed of the oil. As a result, the flow speed of
the oil can be controlled by adjusting the size of the space in
which the oil flows. The adjusting unit 27 can be adjusted outside
the base 20 without disassembling the glass door 70, enhancing the
convenience for use.
[0041] With reference to FIG. 9 and FIG. 10, the hydraulic hinge of
a second preferred embodiment in accordance with the present
invention further has a base shell 60. The base shell 60 is made of
stainless steel and is mounted outside the base 20 to provide an
antirust effect for the base 20. The base shell 60 has a shell body
61, a first cover 62, and a second cover 63. The shell body 61 is
sleeved around the base 20 along the longitudinal direction of the
first space 21, and the first cover 62 and the second cover 63 are
combined with the base 20 at the opposite ends respectively. Each
clamping plate 51 has a plate shell 511 and a plate body 512,
wherein the plate body 512 is mounted in and combined with the
plate shell 511. Each plate shell 511 is made of stainless steel to
provide an antirust effect. The clamping plates 51 are pivotally
connected with the pivot 30 by one of the plate bodies 512, and the
clamping plate 51 abuts the clamping pad 53 by the plate body 512.
As a result, the base 20 does not need to be made of stainless
steel since the base shell 60 is made of stainless steel, and only
each clamping shell 511, not the clamping plate 51, is made of
steel, such that the base 20 and the plate body 512 can be made of
aluminum or other low-cost metal, reducing the manufacturing cost
for the hydraulic hinge.
* * * * *